Mobile Information Bar Customization

Site URL: https://sf.digital/squarespace/customising-the-mobile-information-bar

Is this not able to be used anymore? I've use it last year and it was working, it only stopped working for me after the update.
I'm trying to use the Email button of the Mobile Information Bar as a Whatsapp button.

Can anybody point me in the right direction how to enable this again? Thank you very much in advance.

Here's my website and the code:

https://cleaningequipment.org

<script>
$(window).bind("load", function() {
  $('.sqs-mobile-info-bar-trigger[data-type="contactEmail"] .sqs-mobile-info-bar-trigger-label').text('Whatsapp');
  $("a[href='mailto:xxx@gmail.com']").attr('href', 'https://api.whatsapp.com/send?phone=00000000000&text=Hi%20there!%20I%27m%20looking%20for%20')
});
</script>

Thanks in advance.